Physical diagram of USB3.0 data cable wiring

USB3.0 data cable

Excitedly, data can be transmitted for a short time, that is, a bunch of files can be transmitted and downloaded just by finger flicking, while the birth of USB 3.0 is undoubtedly a great luck for IT workers.Previous USB 2.0 is slower than USB 3.0 in speed. This article will make you know this great data transmission device-USB 3.0 data cable from a professional point of view.

Sectional view of USB 3.0 data cable

The performance of USB 3.0 data cable for speeding is entirely due to technical improvements. Comparedwiththe current USB 2.0 interface, USB 3.0 adds more parallel-mode physical bus.ForUSB 3.0interfacesize standard,you can pick up a USB cable around and look at the interface section. On the basis of the original 4-wire structure (power supply, ground line, 2 datalines), USB 3.0 data cable added 4 lines for receiving and transmitting signals.

As a result, there are a total of 8 lines in the cable or on the interface. It is the additional 4 lines (2 pairs)that provide the required bandwidthtosupportspeeding. Obviously,2 lines (1 pairs)on USB 2.0 are not enough.

Structure of USB 3.0 data cable 

In addition,its signal transmission is still controlled by host but is asynchronous.USB 3.0datacable takesadvantage of bidirectional data transmissionmodeinstead ofhalf-duplex modeofUSB 2.0. Simply put, data flow in one direction, simplifying the time consumption caused by waiting. 

In fact, USB 3.0 does not take much of advanced technology that is rarely heard of, but theoreticallyimprovesthe bandwidth by 10 times. As a result, it is more affable and friendly.Once SuperSpeed USB product comes out, it can make it easy for more people to accept and make better customization products.

Anatomical diagram of USB 3.0 data cable

• Transmission rate ofUSB3.0datacable:

The actual transmissionrate of this new interfacewithultra-high speed is approximately 3.2Gbps (that is, 400MB/S)whiletheoretical maximum rate is 5.0Gbps (625MB/S).

• Transmission principle of USB3.0 datacable:

USB3.0 introduces full-duplex data transmission. Two of the five lines are used to send data, the other two are used to receive data, andoneisgroundline. That is to say, USB 3.0 can read and write synchronouslyat full speed. Previous USB versions didnot support full-duplex data transmission.

• Working power of USB3.0:

The load of the power supply has been increased to 150mA (USB 2.0 is about 100 mA),and the configuration device can be increased to 900mA,80% higher than USB 2.0 and charging faster. In addition, the minimum operating voltage of USB3.0 drops from 4.4Vto 4V, saving more power.

• Power Management capability of USB3.0:

USB 3.0 data cableisthicker because USB 3.0 has 4 more internal lines than USB2.0. However, this socket is a defect of USB 3.0whichcontains additional connection devices.

Will USB 3.0 replace USB 2.0 in all ranges?

USB 3.0 is an upgraded version of USB 2.0. Can we use USB 3.0 for application? The answer only can be persuasive when we have a comparison on these two types.

A Detailed comparison

According to above introduction on USB 2.0 and USB 3.0, we can easily find out it is hard to entirely replace USB 2.0 in all ranges. Let’s find the details as follows.

• Compatibility requirements: USB 3.0 mainly offers high speed, whereas many devices can not support fast transmission due to the stability.
• Cost Effectiveness: It is less expensive for producing USB 2.0 cables. Therefore, many companies prefer purchasing USB 2.0 to keep costs down.
• Interface limit: most basic peripherals don’t have USB 3.0 port, thus, one USB 3.0 can not display its speed on USB 2.0 port

All in all, USB 3.0 and USB 2.0 have their own markets, none of them can replace each other.

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